LifecycleObserver::contextDestroyed should be explicitly dispatched promptly when a context is dest…

Source/core/dom/Document.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  *           (C) 2006 Alexey Proskuryakov (ap@webkit.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2011, 2012 Apple Inc. All rights reserved.
  * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  * Copyright (C) 2008, 2009, 2011, 2012 Google Inc. All rights reserved.
  * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies)
  * Copyright (C) Research In Motion Limited 2010-2011. All rights reserved.
@@ skipping 2197 matching lines @@
     if (m_mediaQueryMatcher)
         m_mediaQueryMatcher->documentDetached();
 
     lifecycleNotifier().notifyDocumentWasDetached();
     m_lifecycle.advanceTo(DocumentLifecycle::Stopped);
 #if ENABLE(OILPAN)
     // Done with the window, explicitly clear to hasten its
     // destruction.
     clearDOMWindow();
 #endif
+
+    LifecycleContext<Document>::contextDestroyed();
+    ExecutionContext::contextDestroyed();
 }
 
 void Document::prepareForDestruction()
 {
     m_markers->prepareForDestruction();
     disconnectDescendantFrames();
 
     // The process of disconnecting descendant frames could have already detached us.
     if (!isActive())
         return;
@@ skipping 3625 matching lines @@
 #ifndef NDEBUG
 using namespace blink;
 void showLiveDocumentInstances()
 {
     WeakDocumentSet& set = liveDocumentSet();
     fprintf(stderr, "There are %u documents currently alive:\n", set.size());
     for (Document* document : set)
         fprintf(stderr, "- Document %p URL: %s\n", document, document->url().string().utf8().data());
 }
 #endif